/*
 * ====================================================================
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */

package org.apache.http.entity.mime;

import java.io.IOException;
import java.io.OutputStream;
import java.nio.charset.Charset;
import java.util.List;

/**
 * HttpBrowserCompatibleMultipart represents a collection of MIME multipart encoded
 * content bodies. This class is emulates browser compatibility, e.g. IE 5 or earlier.
 *
 * @since 4.3
 */
class HttpBrowserCompatibleMultipart extends AbstractMultipartForm {

  private final List<FormBodyPart> parts;

  public HttpBrowserCompatibleMultipart(
    final Charset charset,
    final String boundary,
    final List<FormBodyPart> parts) {
    super(charset, boundary);
    this.parts = parts;
  }

  @Override
  public List<FormBodyPart> getBodyParts() {
    return this.parts;
  }

  /**
   * Write the multipart header fields; depends on the style.
   */
  @Override
  protected void formatMultipartHeader(
    final FormBodyPart part,
    final OutputStream out) throws IOException {
    // For browser-compatible, only write Content-Disposition
    // Use content charset
    final Header header = part.getHeader();
    final MinimalField cd = header.getField(MIME.CONTENT_DISPOSITION);
    writeField(cd, this.charset, out);
    final String filename = part.getBody().getFilename();
    if (filename != null) {
      final MinimalField ct = header.getField(MIME.CONTENT_TYPE);
      writeField(ct, this.charset, out);
    }

  }

}
